Returns full call chain with function names and arguments.
Returns function names in call chain.
Calls the default Za error handler.
Emergency exit with specified code.
Enable/disable enhanced error context display.
Returns the filename where the error occurred.
Returns user-defined global variables (same as mdump).
Returns variables in the error frame.
Returns the original error message text.
Returns source lines (before, after) around error.
Returns error location as {file, line, function, module}.